Thousands of saltwater aquarium enthusiasts have dialed in the analysis with Milwaukee's salinity refractometer. No more visual readings. Get a digital readout within seconds accurate to ±2 ppt with automatic temperature compensation (ATC).

What People Are Saying

"This is a terrific addition and you'll want a digital refractometer if you spend any time at all with saltwater aquariums. Highly recommended."

"This is a must for any even remotely serious reef tank hobbyist."

"All I can say is WOW! I should have had this sooner."

Design features

• Fast, accurate results with digital dual level LCD readout
• Easy measurement with just 2-3 drops of sample needed and results less than 2 seconds
• Automatically temperature compensated
• Simple one-point calibration using distilled or deionized water
• Easy to clean, stainless steel sample well with unit rated to IP65 as "dust tight" and protected against water jets
• Battery percent level indicator with automatic shut-off (batteries included)